EP3501843B1 - Procédé de fabrication de roues d'aluminium à surfaces brillantes - Google Patents

Procédé de fabrication de roues d'aluminium à surfaces brillantes Download PDF

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Publication number
EP3501843B1
EP3501843B1 EP17208367.7A EP17208367A EP3501843B1 EP 3501843 B1 EP3501843 B1 EP 3501843B1 EP 17208367 A EP17208367 A EP 17208367A EP 3501843 B1 EP3501843 B1 EP 3501843B1
Authority
EP
European Patent Office
Prior art keywords
wheel
shiny surfaces
production
shiny
produced
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP17208367.7A
Other languages
German (de)
English (en)
Other versions
EP3501843A1 (fr
Inventor
Claus-Michael Honsel
Joerg Werner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Borbet Thueringen GmbH
Original Assignee
Borbet Thueringen GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Borbet Thueringen GmbH filed Critical Borbet Thueringen GmbH
Priority to PL17208367T priority Critical patent/PL3501843T3/pl
Priority to EP17208367.7A priority patent/EP3501843B1/fr
Publication of EP3501843A1 publication Critical patent/EP3501843A1/fr
Application granted granted Critical
Publication of EP3501843B1 publication Critical patent/EP3501843B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B21/00—Rims
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B1/00—Spoked wheels; Spokes thereof
    • B60B1/06—Wheels with compression spokes
    • B60B1/08—Wheels with compression spokes formed by casting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/22—Moulds for peculiarly-shaped castings
    • B22C9/28—Moulds for peculiarly-shaped castings for wheels, rolls, or rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B2310/00—Manufacturing methods
    • B60B2310/20—Shaping
    • B60B2310/202—Shaping by casting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B2310/00—Manufacturing methods
    • B60B2310/20—Shaping
    • B60B2310/242—Shaping by laminating, e.g. fabrication of sandwich sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B2360/00—Materials; Physical forms thereof
    • B60B2360/10—Metallic materials
    • B60B2360/104—Aluminum

Definitions

  • the present invention relates to a method for producing wheels from cast aluminum, wherein a measurement material is formed on the sections planned as gloss surfaces for the purpose of later production of gloss surfaces by machining processes.
  • Corresponding methods and wheels produced by the method are known in the prior art, for example from GB 1 418 627 A or EP 2 145 708 .
  • glossy surfaces are formed on the side of the wheel facing away from the intended emergency vehicle, which is visible in the assembled state, in particular to beautify the aesthetic impression. These are generated by so-called gloss turning, among other things.
  • the base body rotates around its central axis while material is being removed. In the prior art, this is usually done after painting, so that the paint is removed again by turning. In addition, it is necessary to remove an appropriate layer of material in order to achieve the desired gloss.
  • a radius or chamfer is continued on the wheel in order to generate the glossy allowance.
  • the present object is to provide a method for producing a generic wheel, in which the risk of edge corrosion on the high-sheen wheel is avoided or at least minimized.
  • a method with the features of claim 1 is proposed for the technical solution to this problem. Further advantages and features result from the subclaims.
  • a wheel according to the invention is defined in claim 5.
  • the measurement material is formed with a clear edge within the section boundaries, avoiding radii or chamfers.
  • Clear-cut means that the existing contours of the wheel are not continued to form a measurement, but rather the measurement material is placed in the planned finished contour like an additional web with a clear edge compared to the actual wheel design. This takes place in the casting, exactly during the manufacture of the lower core or the mold itself.
  • the section boundaries form exactly the planned one Glossy surface. If you cut the wheel in the area of the transition from wheel material to measurement material, the wheel contour preferably has a kink at this point.
  • the web or dome-like portion of the allowance is generally removed by turning, milling, machining, there are no sharp transition edges to the actual wheel contour, but soft edges are formed which do not represent broken edges.
  • broken edges are used to denote a sharp-edged transition from the glossy surface to the painted surface, which edge offers a paint with little adhesion area and / or practically does not allow painting by means of a protective paint at this point.
  • a wheel with a glossy surface produced by machining processes is characterized in that the transition from the wheel material to the gloss-turned material is designed without break edges.
  • Fig. 1 shows the formation of measurement material 2 on a wheel 1 according to the prior art.
  • Measurement material with a thickness 3 of approximately 1.5 mm is usually additionally applied at the points which are to be worked off by turning.
  • the connection is according to Fig. 1 in the prior art usually by forming a chamfer or a radius. Among other things, this depends on the constructive scope.
  • connection of the glossy surface formed by removing the measurement to the painted surface is inevitably sharp-edged.
  • This sharp-edged transition which cannot be removed with economically justifiable effort, represents a kind of ridge or cut edge.
  • Subsequent protective coating with acrylic paint makes the paint adhesion at this point extremely unfavorable. This leads to weather-related edge corrosion along the gloss-turned edges. This is economically disadvantageous.
  • Fig. 2 shows the procedure according to the invention.
  • the wheel 5 has a measurement material 6 which, within the section boundaries which are to outline the later glossy area, has a web placed on it as measurement material 6 while avoiding radius and chamfer.
  • This also has the oversize 7, which can also be 1.5 mm, but the invention enables the area to be turned to be made thinner overall.
  • the material savings per wheel may be small, but this is remarkable due to the large masses.
  • the finished, gloss-turned wheel practically represents the lower core (active element of the design; mold component), on which the glossy turning allowance is placed within the section limits. The actual connection is not touched at all when turning, milling, machining and there are no sharp-edged burrs here.
  • Fig. 3 shows the wheel 8 with the oversize material 9 within the clear-cut section boundaries 10. It shows that a soft transition is formed in the area 11 that has already been turned.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Milling Processes (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Claims (5)

  1. Procédé de fabrication de roues en fonte d'aluminium, dans lequel, pour la production ultérieure de surfaces brillantes par des procédés d'usinage, un matériau surdimensionné est formé sur les sections prévues comme surfaces brillantes,
    caractérisé en ce que
    le matériau surdimensionné est réalisé comme une nervure supplémentaire avec un bord défini exclusivement dans les limites des sections.
  2. Procédé selon la revendication 1, caractérisée en ce que les limites des sections décrivent exactement la surface brillante prévue.
  3. Procédé selon l'une des revendications précédentes, caractérisé en ce que le contour de la roue en coupe présente un coude sur une arête de contact entre le matériau de la roue et le matériau surdimensionné.
  4. Procédé selon l'une des revendications précédentes, caractérisée en ce que les surfaces brillantes sont produites dans un processus de tournage en enlevant le matériau surdimensionné.
  5. Roue en fonte d'aluminium, la roue présentant des surfaces brillantes produites par des procédés d'usinage par enlèvement de copeaux, caractérisée en ce que la roue est produite par un procédé selon au moins une des revendications 1 à 4 et en ce que la transition de la roue aux surfaces brillantes est formée sans ligne de rupture.
EP17208367.7A 2017-12-19 2017-12-19 Procédé de fabrication de roues d'aluminium à surfaces brillantes Active EP3501843B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PL17208367T PL3501843T3 (pl) 2017-12-19 2017-12-19 Sposób wytwarzania kół aluminiowych z błyszczącą powierzchnią
EP17208367.7A EP3501843B1 (fr) 2017-12-19 2017-12-19 Procédé de fabrication de roues d'aluminium à surfaces brillantes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP17208367.7A EP3501843B1 (fr) 2017-12-19 2017-12-19 Procédé de fabrication de roues d'aluminium à surfaces brillantes

Publications (2)

Publication Number Publication Date
EP3501843A1 EP3501843A1 (fr) 2019-06-26
EP3501843B1 true EP3501843B1 (fr) 2020-04-01

Family

ID=60781714

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17208367.7A Active EP3501843B1 (fr) 2017-12-19 2017-12-19 Procédé de fabrication de roues d'aluminium à surfaces brillantes

Country Status (2)

Country Link
EP (1) EP3501843B1 (fr)
PL (1) PL3501843T3 (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1418627A (en) 1971-12-09 1975-12-24 Jensen Motors Ltd Wheels
DE102008034189B3 (de) 2008-07-16 2010-05-12 Felix Aschwanden Fahrzeugrad oder Radstern hierfür
WO2011060934A1 (fr) * 2009-11-21 2011-05-26 Ronal Ag Composants de roues de véhicule, y compris roues de véhicule, avec un revêtement de surface et procédé de fabrication de tels composants de roues de véhicule
EP3225335A1 (fr) * 2016-04-01 2017-10-04 Borbet Austria GmbH Procede destine a l'amelioration de la surface d'une partie de roue et partie de roue amelioree

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
PL3501843T3 (pl) 2020-09-07
EP3501843A1 (fr) 2019-06-26

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